I create a simple view (A); a window that contains a toolbar on top and a tab panel. Inside one of those panel I have a dataview. Then I set the itemSelector config of the view to "div:root". Later on, I change the itemSelector value for "div" and it completely change the way my view looks like: there is an empty space between the window and the toolbar, some of the fields i dropped in the panel are suddenly appearing out of the window, and if I click on a different view(B ), then it appears under my view (A), unless of replacing the design area, it adds it under. so i'm stuck with my view (A) always showing.

Let me know if you need me to send you a screenshot or the project itself.
thanks